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percent of Americans who believe global warming is very real 70%
percent of Americans who believe global warming is not happening 12%
percent of Americans who believe global warming is caused mostly by human activity 54%
percent of Americans who say they are "somewhat" or "very worried" about
global warning 58%
percent of Americans who say they trust climate scientists as a source of
information about global warming 76%
pencent of climate scientists who believe global warming is being caused
by human 90%
percent of all carbon dioxide that is emitted by man made sources 1%
